Fix misspelling in docs

Reported-by: Erik Rijkers <er@xs4all.nl>
Discussion: https://www.postgresql.org/message-id/6223b7dc-bfee-fcff-88d9-13f99b8d4897@xs4all.nl
Backpatch-through: 19

diff --git a/doc/src/sgml/xfunc.sgml b/doc/src/sgml/xfunc.sgml
index cb3cc09f16db409176f912a10b52c1cf0c157ee6..2b8a11e7ad082d9065c08b5b7242c002933e69f8 100644 (file)
--- a/doc/src/sgml/xfunc.sgml
+++ b/doc/src/sgml/xfunc.sgml
@@ -3740,7 +3740,7 @@ my_shmem_init(void *arg)
       on whether the requested memory areas were already initialized by
       another backend. The callbacks will be called while holding an internal
       lock (ShmemIndexLock), which prevents the race condition of two backends
-      trying to initializing the memory area at the same time.
+      trying to initialize the memory area at the same time.
      </para>
     </sect3>